热液老化对e -玻璃纤维/环氧树脂在准静态和疲劳载荷下界面结合的影响

IF 14.2 1区材料科学 Q1 ENGINEERING, MULTIDISCIPLINARY

Composites Part B: Engineering Pub Date : 2025-05-23 DOI:10.1016/j.compositesb.2025.112649

Mehdi Nikforooz , Lode Daelemans , Karen De Clerck , Wim Van Paepegem

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引用次数: 0

摘要

水热老化对e -玻璃纤维的完整性和浆料有不同的影响。在本研究中，研究了不同时间的水热老化对e -玻璃纤维在准静态和疲劳载荷下的拉伸强度和e -玻璃/环氧树脂界面性能的影响。为此，进行了单纤维拉伸试验、单纤维破碎试验和单短纤维复合试验。特别对创新的单短纤维复合材料试样进行了准静态和疲劳试验，以捕捉脱粘裂纹的萌生和扩展过程。因此，水热老化对e -玻璃/环氧树脂的界面强度影响不大，但对混合模式脱粘扩展有不利影响。在这方面，当纤维离轴角接近90֯时，在准静态和疲劳加载下，老化的e -玻璃/环氧树脂样品中捕获的脱粘裂纹要比原始的e -玻璃/环氧树脂样品长得多。

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The effect of hydrothermal ageing on the interfacial bonding of E-glass fibre/epoxy in quasi-static and fatigue loading

Hydrothermal ageing can have different effects on the integrity of E-glass fibres and their sizing. In this study, the effect of hydrothermal ageing for different time periods was examined on the tensile strength of E-glass fibres and the interfacial properties of E-glass/epoxy in quasi-static and fatigue loading. For this purpose, single fibre tensile tests, single fibre fragmentation tests and single short fibre composite tests were performed. In particular, quasi-static and fatigue tests were conducted on innovative single short fibre composite specimens to capture the initiation and propagation of debonding cracks. Consequently, hydrothermal ageing had an insignificant effect on the interfacial strength of E-glass/epoxy, whereas it resulted in a detrimental impact on the mixed mode debonding propagation. In this regard, as the fibre off-axis angle approached 90֯, substantially longer debonding cracks were captured in aged E-glass/epoxy specimens compared to virgin E-glass/epoxy specimens in both quasi-static and fatigue loading.

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来源期刊

Composites Part B: Engineering 工程技术-材料科学：复合

CiteScore

24.40

自引率

11.50%

发文量

784

审稿时长

21 days

期刊介绍： Composites Part B: Engineering is a journal that publishes impactful research of high quality on composite materials. This research is supported by fundamental mechanics and materials science and engineering approaches. The targeted research can cover a wide range of length scales, ranging from nano to micro and meso, and even to the full product and structure level. The journal specifically focuses on engineering applications that involve high performance composites. These applications can range from low volume and high cost to high volume and low cost composite development. The main goal of the journal is to provide a platform for the prompt publication of original and high quality research. The emphasis is on design, development, modeling, validation, and manufacturing of engineering details and concepts. The journal welcomes both basic research papers and proposals for review articles. Authors are encouraged to address challenges across various application areas. These areas include, but are not limited to, aerospace, automotive, and other surface transportation. The journal also covers energy-related applications, with a focus on renewable energy. Other application areas include infrastructure, off-shore and maritime projects, health care technology, and recreational products.